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Objective To conducte compression tests and finite element mechanical simulations on Eriobotrya japonica (Thunb.) Lindl., and investigate its compression characteristics. Methods The compression deformation process of Eriobotrya japonica (Thunb.) Lindl. was repeatedly tested by universal electronic material testing machine, and the relationship curve between compression force and deformation was obtained. The feature points and feature chains of fruits pictures were extracted by image processing, and the 3D digital model of fruits was constructed. The stress and strain distribution of its fruits under compression was analyzed based on ANSYS Workbench 2024 R1 finite element simulation software. Results The yield load of Eriobotrya japonica (Thunb.) Lindl. fruit was 38.25 N. The average relative error between the finite element simulation model and compression test was 5.93%, which proved that the compression test of its fruit was reasonable and effective. The stress-strain cloud map of fruit compression test was obtained. It was found that the maximum stress position of Eriobotrya japonica (Thunb.) Lindl. was at the edge of the contact between the fruit and the upper pressure plate, the maximum stress value was 0.14057 MPa and the maximum strain value was 0.52233 mm. Conclusion In the process of picking and circulation of Eriobotrya japonica (Thunb.) Lindl., it shall be noted that the extrusion pressure generated by mechanical picking and fruit stacking shall not exceed 38.25 N to avoid mechanical compression damage. At the same time, it is necessary to do a good job of packaging buffering to protect the maximum stress part of its fruits.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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